baber/WOPTO huggingface dataset:
Patent GB-648617-A (GB)
Title: Mechanical coal-cutter
IPC: E21C27/46
Filed: 1948-03-18
Abstract: 648,617. Mining-machines. ELOY, F. March 18, 1948, Nos. 8058, 8059, 8060 and 8061. Convention dates, March 18, 1947, May 16, 1947, July 23, 1947 and March 3, 1948. [Class 68 (i)] [Also in Group XXHI] In a planer type mining-machine, in addition to the continuous thrust exerted on the wedge cutter edges, there is superimposed a momentary thrust due to the blows struck on each head by its pneumatic hammer. One or more wedgeshaped cutting tools 5 are mounted on a sledge 1 which may be hauled forward by a cable or be pushed or pulled forward by a hydraulic motor the piston shaft of which is secured to the sledge whilst the cylinder has secured to it a vertical hydraulic jack in order that it may be anchored with respect to the seam whilst exerting a force on the sledge. Each cutter comprises a wedge 5 mounted on a shaft 19 of rectangular or hexagonal cross-section which is free to slide in a support 3, being retained therein by retaining collars or bolts Mounted in a further support 62 are pneumatic hammers 4 one for each of the wedge heads, the support being so 'positioned that, when the tools engage the buttock of the face and are forced back in their support, the pistons of the hammers hit the shafts of the wedges. The dislodged coal is deflected outwards from the seam by a deflector plate on to a conveyer, the sledge being kept against the face by sliding along a rail secured to the front row of props. Groups of vertically disposed wedges may be laterally displaced to remove several' strips simultaneously and at differing levels. Instead of being rigidly secured to their support, each hammer may be resiliently mounted thereon either sliding within its support under the control of springs or being secured to the support on resilient mountings. To facilitate progress of the sledge, interlocking metal sheets 129 may be laid on the floor and in this case the sledge is guided by an adjustable shoe 168 at the inside front edge and by a spring block 158 secured by a hawser 13 to the front edge of the sledge, the block being positioned between the upturned edge 128 of the plates and a shoe 58 on the outside edge of the sledge. Water may be sprayed in the vicinity of each cutting tool to reduce dust. The exhaust air from the hammer cylinders is utilised to blow dust away from the vicinity of the tool and hammer support. Spring-loaded pawls are provided for preventing back run of the machine on an inclined floor. Specification 593,752 is referred to.
Patent GB-360786-A (GB)
Title: Improvements in feeding-in devices for threshing machines
IPC: A01F12/14
Filed: 1931-03-16
Abstract: 360,786. Thrashing-machines. LANZ AKT.-GES., H., 53, Lindenhofstrasse, Mannheim, Germany. March 16, 1931, No. 8080. Convention date, Dec. 3, 1930. Addition to 346,507. [Class 58.] The feeding-in device d and the elevator c of the thrashing-machine of the parent Specification are extended so as to overlap. The elevator belt extends into the machine over the beater drum b and the feeding-in device projects laterally over the side of the machine so that the clawing members f overlap part of the belt, and thus can claw in the material on the top thereof. Knives m for cutting the binding member of the sheaves may be carried on the feeding-in device.
Patent GB-985437-A (GB)
Title: Improvements in or relating to the rings of ring spinning, doubling and twisting frames
Inventor: TURNBULL JOHN
IPC: D01H7/62
Filed: 1963-03-01
Abstract: 985,437. Spinning rings. EADIE BROS. & CO. Ltd. Feb. 20,1964 [March 1,1963], No. 8190/63. Heading D1D. A porous sintered metal spinning &c. ring has an annular groove a in its outer wall which is inclined downwardly towards the inner surface, serves as a reservoir for free lubricant or a container for an oil-saturated wick, and is wholly or partially covered at C. To secure the ring to the carrier B and to position the cover, the ring has an external flange a<SP>1</SP> resting on a flange in the carrier and screws d are provided each with a washer D extending into a recess of the cover C. In another form, the cover is in the form of a snapover resilient member or a ring of resilient material, and the washers extend into recesses in the outer wall of the ring. When a wick is used an inclined passage leads from groove α to the outside of the ring so that the wick ends can be led into a reservoir. The surfaces of the ring which do not require lubrication may be sealed.
Patent GB-279319-A (GB)
Title: Improvements in or relating to mechanically operated gas analysers
IPC: G01N7/04
Filed: 1927-03-24
Abstract: 279,319. Barker, G. H., (Cunningham, A. B.). March 24, 1927. Disc-recording apparatus.-Samples of combustion gases for analysis are taken in a fixed measuring-chamber alternately filled and emptied by means of a reciprocating chamber enclosing it and containing displacement liquid; the sample is then passed through a liquid which absorbs carbon dioxide to a measuring bell 58 carrying a tappet 62 on a rod 61. As the bell 58 rises the tappet 62 strikes a pin 63 on an arm 64 carried on a spindle 66, which also is connected to a tracer 70 moving over a revolving chart 71. The spindle 66 also carries a drum 65, on which bears a brake-block 75 carried on a pivoted arm 73. The arm 73 is operated from the driving gear of the apparatus so as to release the drum 65 for the tappet 62 to operate the tracer 70 and then hold the drum and tracer in position until the gas has left the bell 58 and another charge has entered it. The gas leaves the bell 58 by a pipe 81 opening into a sealing-chamber carried by the chamber 47, so that the pipe 81 is unsealed only when the chamber 47 is at the bottom of its travel.
Patent GB-907234-A (GB)
Title: Improvements in and relating to storing ovens
Inventor: MATHEWS AMPHLETT CHRISTOPHER B
IPC: B01J6/00
Filed: 1960-03-08
Abstract: 907,234. Drying systems and apparatus. COATES BROS. & CO. Ltd. June 5, 1961 [March 8, 1960], No. 8199/60. Class 34 (2). A method of stoving articles comprises subjecting the articles to a forced draught of hot gases in an oven having an inlet hood and a suction hood of similar size disposed opposite one another on either side of a path to be traversed by articles in the oven, the suction hood affording substantially unobstructed access of hot gases from the full width of the path and leading to the inlet hood, so that the hot gases may be caused to circulate. In a stoving oven articles to be dried are conveyed along a conveyer C-C through currents of heated air provided by inlet hoods 1, 3 and U-shaped suction hoods 2, 4 disposed opposite one another on either side of the conveyer so that the hot gases supplied to the first suction hood 2 at 5 and caused to circulate by a series of fans 8, 9 mounted in the suction hoods in the path shown by single-headed arrows. The fans and fan ducts are mounted along either side of the U- shape of the hoods 2, 4 and lead to ducting 15 mounted above the head and to ducting disposed alongside the head 4 respectively. A bleeder pipe 6 removes gas at 7 on the pressure side of the hood 4. The temperature of the oven is stated as being between 200‹ and 750‹ F. with a gas velocity greater than 7 feet/sec, and the pressure at the entrance and exit of the oven is adjusted to be substantially atmospheric. In various modifications the gases may be heated by electrical heaters; a portion of the circulating gases may be drawn off from the transfer ducting leading from a suction hood to an inlet hood for heating and returning it to a suction hood; valves may be inserted in the inlet and suction hoods; and the hoods may be so disposed that the hot gases are drawn over the articles being stoved in the same direction through the length of the oven. Specification 617,556 is referred to.
Patent GB-964398-A (GB)
Title: Crane attachment for tractor
IPC: B66C23/44
Filed: 1963-03-01
Abstract: 964,398. Mobile jib-cranes; tractor load handling attachments. CONSTRUCTION EQUIPMENT CO. PTY. Ltd. March 1, 1963 [March 9, 1962], No. 8256/63. Headings B8B and B8H. A crane attachment for a tractor comprises a jib 19 and an arm 20 which are supported by a post 17 rotatably mounted in bearings 16 on a platform 3. The platform 3 is pivotally suspended from the rear axle 7 of the tractor by brackets 6, Fig. 2, and is further supported by links 12, 14 attached to thehydraulic lift 15 of the tractor. A wheel 23 facilitates movement of the crane when disconnected from the tractor. Hydraulic fluid is supplied to a ram 21 which luffs the jib and to a further ram which extends a telescopic portion of the jib through a conduit 20, 20A and a rotary coupling 20B. The tractor can turn through 360 degrees relative to the crane.
Patent GB-798224-A (GB)
Title: Improvements in or relating to light hoods for photographic reflex cameras
IPC: G03B11/04
Filed: 1955-03-22
Abstract: 798,224. Light hoods for photographic reflex cameras. HEIDECKE, R., and FRANKE, H., [trading as FRANKE & HEIDECKE FABRIK. PHOTOGR. PRAZISIONS-APPARATE]. March 22,1955 [April 3, 1954], No. 8279/55. Class 98(1) A light hood for the view-finder screen of a phohographic reflex camera, having front, rear and two side walls foldable about hinges and disposed, in their erected position, at right angles to the plane of the ground glass screen, and surrounding the screen, is characterized in that the rear wall is connected directly to the front wall and the side walls are connected to the front wall either directly or through the medium of the rear wall, the connections including a link and lever system or a cam and lever system and being such that, during a part of the movement of the rear and side walls remain unactuated, while during another part of the front wall movement the rear and side walls are erected or collapsed in a predetermined sequence, all of the walls and connections always remaining above the plane of the ground glass. As shown in Fig. 1 the front wall 5 is urged to the open position by a spring (not shown) which encircles the hinge 4 and is connected to the rear wall 7 mounted on tne hinge 8 by a bar 9 at one end carrying a pin 10 engaging in a slot 11 in the wall 5 concentric with the hinge 4 and at the other end being pivoted on a pin 13 offset from the hinge 8 on the rear wall 7. The bar 9 is forced by the spring 12 towards the end of the slot 11 nearer the rear wall. The side walls pivot on hinges 18 and are forced by springs 19 into the folded position, and carry lugs 20 engaged by pins 21 on levers 22 pivotable about the hinge 8. The rear wall 7 carries abutments 23 forcing the levers 22 upwardly on erection of the wall 7 so that the pins 21 press on the lugs 20 and erect the side walls 14, the movement being arrested by the flanges 24. The front wall 5 has flanges 6 to form a cap to cover the other walls when closed. The constantly-acting erecting spring operative on the front wall may be replaced by a toggle-action spring effective to urge the front wall both into the erect and the closed positions. Springs 25 hold the levers 22 against the abutments 23 to prevent rattling. In a modification, pins carried by the bars connecting the front and rear walls engage in cam grooves in levers pivoted on the rear hinge and having pins underlying lugs on the side walls. In a further modification, the bars are connected to levers rotatable about the hinge pin of the rear wall and carrying pins sliding in slots in the flanges of the rear wall. The top ends of the levers engage lugs on the side walls and close them against spring action when the front wall is moved in the closure direction. In a still further modification, cams fixed to the front wall actuate in turn levers tending to close the side walls and tending to close the rear wall against the action of hinge springs. The lever pivots may be mounted on eccentric studs to permit of adjustment and the cams may be adjustable.
Patent GB-125383-A (GB)
Title: Improvements in or relating to Automatic Rammers.
IPC: B02C1/14
Filed: 1919-04-03
Abstract: 125,383. Soc. Anon. des Ateliers Detombay. Aug. 1, 1917, [Convention date]. Void [Published under Sect. 91 of the Act]. Tamping - machines. - The monkey m of a rammer is carried by a plate p, which is raised by constantly - rotating recessed cams c. The axes of the cams are mounted in eccentric sleeves d, Fig. 2, thus enabling the cen. tre of rotation of the cams to be shifted by the levers o, q actuacted from the hand-lever l. When the hand-lever l is in the position shown, the cams are not in engagement with the plate p and the monkey m remains in its lowest position. The lowering of the lever l brings the cams into engagement with the plate, and the ram is raised by the cams and allowed to fall. When the hand-lever l is raised, the cams are again brought against the plate, and the arms s, j rotate the quadrants i to cause the claws k to grip the plate and prevent it from falling. In this case, the plate is raised by the cams in steps until the cams are opposite the recesses p<1>. The plate is guided between loose rollers g. The rammer may be used for ramming concrete in the manufacture of bricks and pipes,
Patent GB-125384-A (GB)
Title: Nut for Bolts or the like.
Inventor: KRAFT HENRY PHILLIP
IPC: F16B37/00
Filed: 1919-04-04
Abstract: 125,384. Kraft, H. P. July 25, 1914, [Convention date]. Nuts.-A sheet-metal nut for use with pneumatic tyre valves &c. has a recess to receive a filling-piece H and a packing-washer G, Fig. 2, and is formed with a reduced extension C folded on itself and threaded on both sides. The filling- piece is made from sheet metal or is solid. Fig. 8 shows a modification in which the body B<2> of the nut surrounds the threaded portion. As shown in Fig. 10, the threaded portion is integral with the filling-piece H<4>. In a modification, the threads are formed on concentric sleeves integral with the body B<4> and filling-piece H<4> respectively.
Patent GB-724324-A (GB)
Title: Improvements in or relating to electrical conductors
IPC: H01R13/58
Filed: 1953-03-27
Abstract: 724,324. Electrically-heated tapes and cables. COX, D. B. March 27, 1953, No. 8573/53. Class 39 (3) [Also in Group XXXVI] A fragile metal resistance,wire 11 is enclosed in a stress-carrying, flexible, inextensible tube 12 of braided glass fibres impregnated with a dielectric filler which maintains the fibres substantially in the position they have when the tube is under tension. An additional insulating and protective covering 13 may be applied. The wire 11 may be made of any metal or alloy having the desired resistance, the diameter being between 0.0008 and 0.008 inches except for low fusing wires which may have a diameter between 0.005 and 0.080 inches. The wire is drawn from the supply reel under minimum tension, the braid being drawn from the braiding machine under relatively higher' tension and at high speed to reduce the angle between the strands and the wire. The braid is impregnated with a compound of high melting point waxes or a watery emulsion of plasticized polyvinyl chloride, the tension on the braid being maintained until the impregnant has set. The covering 13 may be extruded therearound and may comprise a vinyl chloride resin or nylon. A number of wires enclosed in the impregriated glass braid may be laid side by side and enclosed in a common covering 15 which forms flat webs 16 therebetween (Fig. 6).
Patent GB-791004-A (GB)
Title: Improvements in or relating to the manufacture of granulated mixed fertilisers
IPC: C05B7/00
Filed: 1955-03-24
Abstract: A granulated mixed fertilizer with a high nitrogen and potassium content and a low phosphate content is produced by treating an aqueous solution of phosphoric acid with ammonia gas, adding sulphuric acid and ground phosphate rock to the ammoniated acid to form a slurry, adding ammonium sulphate and potassium chloride or sulphate to the slurry and granulating the final product.  The sulphuric acid may be admixed with the phosphoric acid prior to ammoniation if the ammoniation is to be carried out to the mono-ammonium phosphate stage only, but if further ammoniation is required the sulphuric acid must be added afterwards.  In the latter case the sulphuric acid may be added with the phosphate rock or prior to adding the phosphate rock, or it may be reacted with the phosphate rock and the resulting super phosphate sludge may be added to the ammoniated phosphoric acid. The resulting granular mixed fertilizers contain at least 35 plant food units (i.e., the combined nitrogen, phosphate (as P2O5) and potash (as K2O) totals 35 per cent or over), and the ratios of nitrogen to phosphorus and potassium to phosphorus (calculated as elements) is at least 2,5).
Patent GB-400615-A (GB)
Title: Improvements in or connected with apparatus for supplying measured quantities of liquids
IPC: B67D7/74
Filed: 1932-03-23
Abstract: 400,615. Delivering measured quantities. TRITSCH, D. T., 39, Tarleton Street, Liverpool. March 23, 1932, No. 8587. [Class 102 (i).] In apparatus for supplying measured quantities of liquid, in which any one of a number of different liquids is selected by means of a hand-operated rotary valvular apparatus, the latter comprises a disc 1, Fig. 1, rotatably positioned between a lower plate 5, provided with a number of ports 6 connected by pipes 4 to containers for the various liquids, and an upper plate 7 having corresponding ports communicating with the measuring vessel 8. The disc 1 has a single port 2 and is rotated by handles 3 to put the vessel 8 into communication with any one of the suction pipes 4 which may contain non-return valves. Alternatively a single handle 3 is provided in a casing 26, Fig. 6, carried by a ring 27 rotatably mounted on the valve part 1 ; the handle 3 is held in engagement with any one of a number of holes in the edge of the disc 1 by a spring 3<xx>. The faces of the disc 1 are lubricated by a pipe 22 and duct leading into a groove on the face of the plate 5 and thence by vertical holes in the disc 1 on to its upper surface. The lower end of the measuring vessel 8 seats on the plate 7 which has a port 11 communicating with the delivery spout 12 provided with a non-return valve 13. A flexible sheet 9 closes the joint between the parts 7 and 8 and is provided with radial slots 9<x>, Fig. 2A, one of which lies over the port 11 ; the portions of the sheet between the slots form flap valves to prevent return of liquid to the pipes 4. Discharge of the liquid is effected by any suitable means such as a plunger 24 operated in any suitable manner, as e.g. by rack and pinion. The apparatus may be provided with the usual counters and checking mechanism, and the valve may be provided with a device automatically indicating the nature of the liquid supplied.
Patent GB-738196-A (GB)
Title: Improvements in the production of fluorescent screens
IPC: C09K11/02
Filed: 1953-03-28
Abstract: 738,196. Luminescent screens. GEIGY CO., Ltd., and HOWARD, D. K. June 28, 1954 [March 28, 1953], No. 8611/53. Class 39 (1). Complexing agents remove, undesired heavy metal impurities from fluorescent screens. The agents are included in the settling solution or in the wash water. The tri-sodium salt of ethylenediamine tetra-acetic acid is one example, and the di- and tetra-sodium salts may also be used as well as the potassium and the disodiumcalcium salts thereof and the sodium and other salts of allied complexing agents such as nitrilo-triacetic acid. Amounts of copper of one part per million are complexed by the addition of six parts per million of the trisodium salt.
Patent GB-349191-A (GB)
Title: Improvements in or relating to rotary compressors and vacuum pumps
IPC: F04C18/344
Filed: 1930-03-18
Abstract: 349,191. Rotary compressors. SOLLORS. W. H. and GREEN, R. C. C., 12, Cherry Street, and TARRANT, H. W. R., 81, Lyndon Road, Olton, both in Birming- ham. March 18, 1930, No. 8613. [Class 110 (ii).] Fixed-abutment type ; regulating. - A rotary pump of the outwardlysliding vane type which has rings for taking the centrifugal thrust on the vanes, has annular chambers at each end of the pump in which angularly-adjustable rings 1 contain either inlet or outlet ports 7. Either ring may be adjusted after removing the pump end covers, and fixed in position by means of a dowel pin 6 which is secured to a projection on the ring 1 and which engages in one of a series of holes 5 drilled in the pump casing. In a modified arrangement the ring 1 has teeth formed on its periphery which mesh with a pinion screwed to the pump casing. The pinion has flats formed on its side so that it can be rotated by a spanner after removal of an end cover of the pump. The end wall of the pump may be marked off in divisions or degrees for reading off the position of the ported ring by mean of a zero mark on the ring.
Patent GB-250240-A (GB)
Title: Improvements in devices for locking nuts
IPC: F16B39/32
Filed: 1926-03-30
Abstract: 250,240. Soc. Anon. des Etablissements Kiblok. April 4, 1925, [Convention date]. Locking nuts.-In a nut-lock in which a ball 4 in a channel 3 in the nut 1 is held by a spring 5 in engagement with the bolt 2, a push-bar 6 for releasing the ball is provided with an arm 7 projecting through a slot 8 parallel to the channel 3. When the bar 6 and ball 4 are in the unlocking position, the arm 7 can be turned to engage a recess 9 to retain the bar 6..Removal of the bar 6 is prevented by a removable stop 10 or by turning: over the edge of the channel 3.
Patent GB-1191690-A (GB)
Title: Improvements in or relating to Waste Heat-Boilers
Inventor: BOYEN JOHN LOUIS
IPC: F22B1/18
Filed: 1967-12-27
Abstract: 1,191,690. Fluid-pressure servomotor systems. VAPOR CORP. Dec.27, 1967, No.8741/69. Divided out of 1,191,689. Heading G3P. [Also in Division F4] In a waste gas boiler e. g. located by exhaust gases from a gas turbine, the amount of gas flowing over the tubular heat exchanger 14, Figs.1 and 3, is controlled by a valve 82 which by-passes some or all of the gases to the outlet stack 13a. The heat exchanger comprises spirally coiled finned water tubes 103a connected in parallel to inlet and outlet heaters 104, 106, the gas flowing radially inwardly between adjacent coils. The turns of each coil are arranged in pairs 111, 112 and 113, 114, with wider spaces between the pairs than between adjacent tubes. The outlet leader 106 leads to a steam separator 22 from which the separated water is returned to a reservoir 22 having a feedwater inlet 43 and an outlet connected to a forced-feed pump 21. The position of the valve 82 is controlled in accordance with the steam output pressure in pipe 19 and the feedwater supply is controlled by a valve 44 actuated by a device 51 responsive to the water level in the separator. The valve 82 is actuated by a pneumatic motor 68, 69, Fig. 2, the supply to which is controlled by the steam pressure responsive device 20 and by a solenoid operated valve 61a. Normally closed switches CR1 ...... CR4 in the circuit of solenoid 61 are opened by safety switches 59, 17, 33, 60 on the occurrence of exceptionally low water level in separator 22, excessive steam pressure, insufficient water supply pressure at pump 21, or further of feed water supply, thereby causing motor 68 to set valve 82 in the by-pass position in which no gas flows through the heat exchanger 14. Alarm lamps 74, 77, 78, 79 are associated with each supply circuit.